Collapsible tise cobs



A. H. HARRIS. COLLAPSIBLE TIRE CORE.

APPLICATION FILED AU5.9| |921.

Patented g. 22, 1922..

2 SHEETS-SHEET 2.

UNITED STATES PAIENT QFFICE.,

ARCHER H. HARRS, OF BAR-BRETON, OHTO.

COLLAPSIBLE TIRE CORE.

T0 all whomizf mayconcern: l

Be it known that I, ARCHER H. Hannie, a citizen of the United States, and resident of Barberton, in the 'county of Summit and State of Ohio, have invented certain new. and useful Improvements in Collapsiblel Tire'Cores, of which the following is a speci-l fication.

This invention relates to collapsible annular cores upon which tire shoesare constructed.

An object of my invention is to provide a tire-core having a series of segmental sections which are so constructed and supported in relation to each other that they can be rapidly collapsed or broken in a manner to facilitate the removal of the tire when it has been built up upon the core,` and which sections can then'be easily and quickly lreturnedto'their original position for a succeeding tire building operation.

A further object of my invention is to vprovide such a core which is eifectua'lly supported on a central axis of rotation and can thusbe easilymanipulated during the removal as well as the building, of the tire.

Withthese objects in view my invention, generally stated, comprehends a collapsible tire-core embodying various novel features of construction and Combinations of parts which will be hereinafter described and claimed.

'In theA drawings- Figurelis a front elevation of a collapsiblep'tire-core, embodying the principle of my invention, showing the sections assembled and positioned` to constitute an annular structure.l In this view the key sectiony is indicated in dotted lines as lowered and slid` back'ibeyond the plane, of the core:

this rbeing the first step inthe collapsing' operation. f

Fig. 2` is a vertical section through the structure, as on the line 2-2 of Fig. 1.

Fig, 3 is a frontelevation showing the key sectionas lowered'and retracted, and one of the hinged sections as swung inward, the latter* step being thesecond in'o'rder.y

Fig. 4 is a similar View with the said hinged section removed and the other hinged section swung inward; vthis beingl the next and final step.

Fig.'5 is a rear view of the main supporting bracket and the associated guide bracket for the rods of the key section.

Fig. 6 is a vertical section on a plane through the hinge connection of the removspeciacanonof rea-erstatten. pmgnd Aug 2v2, Application inea August e, 1921. sel-iai No. 490,377.

able swinging section, as on the lline 6-6 of Fig. 1. 'f v F ig. 7 is a perspectiveview of the brackets and adjuncts.

Referring to the drawings, 10, 11, 12 and 13y designate a series of relatively movable segmental sections which can be readily assembled and positioned to constitute a c0mplete annular core upon which the tire can be built, and which'sections can be as readily collapsed or broken to facilitate the effective removal of the tire therefrom.

In the preferred form of my invention herein illustrated the section 10, which may be termed Athe primary or base section, is provided with an internal web 14 which is bolted, as at 15, to the outer curved eXten-Y sion 16 of a radially-disposed supporting bracket 17 having an elongated hub 18 later; ally of and in vaxial alinement with the core. rlhis hub is keyed or otherwise held on the free end of a shaft 19 extending from a suitable stand. The sections 11, 12`which may be termed thel second and third sections,` respectively, are provided with suitably-disposed lugs 20, 21, which are pivoted at the respective ends ofthe extension, the extremities of the three sections adjacent the vpivots being so formed that when the sections 11,I 12 are in their outer position such. extremities abut against each other and the peripheries of thel latter sections are in circular relation tothe periphery ofthe section 10. At the same time the free ends ofthe sections 11 and 12 arefin spaced parallel ref lation to eachv other. The section 11 is per* manently pivoted Vto the bracket extension 16 by means, for example. of a bolt 22, and the section 12 isl detachably pivoted to said extensiompreferably on a laterally-project ing Vstud 23 on the extension.

The section 13, termed a key section, is arranged diametrically opposite to the pri'- inary section 10. The key section has affixed thereto two inwardlytV extendingl parallel guide rods 24- which are slidably' fitted to spaced bearings 25 on the respective arms of a bifurcated bracket 26, which is keyed or otherwise fixed on one end of a stem 27 extending above and parallel with theshaft 19, and being sli'dably fitted to aperforated vguide projection 28 on the outer end of the l i the center of the core and thus permit such ation. .w is to be understood that my invention as indicated by full lines in Figs. l and 2,k

v so as to complete and maintain the circular relation of the series of sections, which thus constitutev an annular core upon which the tire may be ybuilt up in the` usual manner.

Whenthe `tire has been constructed the secs` tion '13 can bemovedfinwardly in a rectilinear'path away from the tire and toward the centerof the core, asindicated by dotted lines in-'Fig .1, and can then be bodily slid i laterally fromthe plane of the tire, as in` dicated by dotted lines in 2, morder to vper-mit the ready separation of the remaining" sections' from the tire in a manner hereinafter explained. `In its movement v t'owardthecenter of thecore the section 13 is guided by the rods 24 inthe bearings 25.

`When this; section has reached the position indicated by the dotted lines in Fig. l, it is slid laterallyaway from thev plane of the core, and the stem 274 slidingthrough the guide 'projection 28 of the bracket 17,- until the section is inthe position indicated by lthe dotted lines in Fig. 2. This done, the

section 12, pivoted on the stud 23, is swung ,inward to the position shown in Fig. 3, so as -to be clear of thel tire, and is then bodily fand Vswung `to its outer position, and the .1 of the core can be rapidly brought into small compass in order to facilitate the removal of thetire, and cany then be easily ,and` quickly'returned totheir properannular re- A It section 13 `isvmoved into the plane of the core. The sections are then turned on their commonaXis to position the section 13 below se'ctionto drop into position betweenthe sections 11, 12 and" complete the-` annular formation of the core preparatory to the building of another tire thereon, and so on. From the foregoing it will be seen that my invention provides asimple and convenient sect-ional'core structure which' is effectually supported during the building andthe removal of the tire. IFurther, that the sections lation fora succeedingtire building operi' is `not `limited tothe specilic details of con-V leo struction herein disclosed, as vthe device may beimodied in various respects within'the y principle ofthe invention and the scope of lthe appendedclaims. `1

lclaimi 1. In a collapsible tire-core vcomprising hingedly `connected sections and a removable key section therefor, a supporting element on one of said rst-named sections, and slidable connections betweenthe key section and the supporting element, said connections including means `for guiding the keysection iii two rectilinear paths, one within theini terior plane ofthe ycore'land the'other at rightl angles thereto..

1 2. In a collapsible tire-corel comprising hingedly connected sect-ions and a removable key section-therefor, al supporting element on one of said first-named Jsections,'slidable connectionsbetween the key sect-ion and the supporting element, saidconnections includ ing means for guiding the key sect-ion in two rectilinear paths, one within the interior plane of thecore and the other at right :r

angles thereto, and a rotatable mounting co-axial 'with the y core forv saidj` supporting Ineaiis. j n

3. A collapsible tire-core comprising a one end ofthe primary section, a third, section detachably hinged atthe oppo'siteend of the "primary section, a key sectionfdiaprimary section, a secondsection .hinged at l,

metrically oppositevtothe primary section,

and means for supporting they keyv section and guiding it in two paths, one withinfthe i interior plane of the core and the other at right anglesthereto. i y j y et.' A collapsible tire-corey .comprisingk a primary section,` a second. vsectionhinged at one end .of the primary section, al third sectien detachably hinged at the opposite end ofthe primary section, a keyQsection dia.- metrically opposite to the' primary section,

a `radial supporting element fortheprimary section, an axialmounting forsaid. element', and slidable connections between the key.

section and the supporting'element, said connections including means for guiding the key section in twopaths, one within the `interior plane ofthe .core andY the.k other `at Vi right angles thereto. i.

A collapsible tire-core comprising a primary section, a second sectiony hinged at one end of the primary section, a .third section detachably hinged at the opposite end of the primary section, a key section diametrically opposite to the primarysection,

a supporting elementforthe primarysection, said element having an axial mounting laterally ,of the plane 'of the core yand alguide adjacent said mounting, a bearing bracket supported invsaid guide and movable into and from the plane of the core, and a sliding connection between said. bracketandthe key section.

Signed at Cuyahoga and State of Ohio this 29 dayof July'n. 11,1921. .l

ARCHER n, nilnnifsf Cleveland in the county of 

